When a loop condition is grade > = 90, what values would you use to test your loop?
a. 88 and 89
b. 0 and 90
c. 89, 90 and 91
d. 90, 91 and 92

C. 89,90 and 91.

Explanation:

Since the loop condition is grade>= 90 the values i would use to test the loop  are 89,90 and 91.

So that we can check for 3 different conditions.

89 is less than 90 so we can check for <90.

90 is equal to 90 so we can check for =90.

91 is greater than 90 that condition will also be checked.

Hence we conclude that the answer is option C.

b. xor is the correct answer